i know u need to cut it but in order to snap it if its possible without taking the tank apart..In order to cut glass you have to score it with a glass cutter and snap it. You can't do that without taking the glass pieces of the tank apart.
tank is in the basement and my window silt is only 14" tall and i try to utilize the maximium area and be able to open and close window. if i use a maximium 24" a 10 gallon tank will not use the full ben efit, but a 15 gal will work but tank is 12" high so too tall.. which i have 2x15gal and one i was thinking of this project i'm trying to work on.. if i custom order a tank that's 24"lx10"wx8"h cost $80 so why don't i just cut the 15 gal i have now to a shorter tank without taking it apart and re silicon it.. second im not skillful enought to silicon it back up..Why would you do it?
That will never work.You can cut it like that. You dont have to snap the glass after scoring it, you can take the other end of the glass cutter and tap along the score on the opposite side until the score starts to "run" then gentle pressure is all thats needed to make it run out to the end of the glass piece. If you can, practice on some scrap glass first.